| AC Employment Limited | York | 2019 |
| AC ENG Limited | Barrow In Furness | 2011 |
| AC Enterprises (North West) Limited | Liverpool | 2024 |
| AC Enterprises Ltd | Bracknell | 2017 |
| AC Exec Limited | Newmarket | 2016 |
| AC Executive Support Limited | Bexleyheath | 2020 |
| AC Facilities Services Limited | Hexham | 2020 |
| AC Fenney Ltd | Frodsham | 2023 |
| AC Financial Associates Limited | Watford | 2013 |
| AC Financial Recruitment Limited | Brentwood | 1994 |
| AC Fire & Security Systems Ltd | Needham Market | 2021 |
| AC Gardens Limited | Warwickshire | 2003 |
| AC Geotechnical Engineer Ltd | Cardiff | 2019 |
| AC Global 99 Ltd | London | 2025 |
| AC Global Recruitment Ltd | Hessle | 2026 |
| AC Grounds Maintenance Services Ltd | Chorley | 2026 |
| AC HAS Ltd | Tamworth | 2014 |
| AC Health Care Group Ltd | Gloucester | 2022 |
| AC Highland Tours Limited | Inverness | 2024 |
| AC Holdings PVT Ltd | High Wycombe | 2017 |
| AC Holiday Rentals Ltd | Harpenden | 2013 |
| AC Human Capital Limited | Belfast | 2021 |
| AC International Limited | Wolverhampton | 2024 |
| AC James Limited | Leicester | 2025 |
| AC K9 Ltd | Ashton-Under-Lyne | 2024 |
| AC Kave Ltd | Chester | 2016 |
| AC Kinetic Ltd | London | 2014 |
| AC Landscapes South Limited | Eastleigh | 2025 |
| AC Landscaping Ltd | Near Grimsby | 2002 |
| AC Life Limited | Portsmouth | 2016 |
| AC Management Consultants Ltd | Wisbech | 2021 |
| AC Multimedia Solutions Limited | Liverpool | 2011 |
| AC Music Promotions Limited | Glasgow | 2020 |
| AC Noir Ltd | London | 2025 |
| AC Pro Engineering Ltd | Warrington | 2016 |
| AC Procurement Consulting Ltd | Prenton | 2024 |
| AC Procurement Ltd | Warrington | 2014 |
| AC Property Consultants Ltd | Walsall | 2016 |
| AC Protect Building Services Limited | Southall | 2026 |
| AC Protective Solutions Ltd | Peterborough | 2025 |
| AC Real Estate Ltd | London | 2017 |
| AC Recruitment Services Ltd | London | 2025 |
| AC Rentaplant Limited | Lisburn | 2014 |
| AC Response Ltd | Reading | 2020 |
| AC Safety Consulting Limited | Altrincham | 2025 |
| AC Secure Systems Ltd | Leeds | 2020 |
| AC Security (South West) Ltd | Taunton | 2019 |
| AC Services Global Ltd | London | 2025 |
| AC Solutions International Limited | Swaffham | 2014 |
| AC Sound Ltd | London | 2025 |
| AC Sports Holidays Ltd | Weybridge | 2023 |
| AC Staffing and Recruitment Ltd | Smethwick | 2024 |
| AC Support Services Ltd | Birmingham | 2025 |
| AC Taxi Rentals Ltd | Glasgow | 2017 |
| AC Therapeutics Limited | London | 2016 |
| AC Total Building Services Limited | London | 2011 |
| AC Travel & Leisure Limited | London | 1994 |
| AC Tree and Landscape Ltd | Bedford | 2026 |
| AC Valeting Ltd | Leeds | 2022 |
| AC Vending Limited | Maldon | 2017 |
| AC Virtual Assistant Ltd | London | 2024 |
| AC Vista Holding Ltd | London | 2024 |
| AC Water Limited | Warrington | 2010 |
| AC Yachts Ltd | London | 2024 |
| Ac&C Support Cleaning Ltd | London | 2023 |
| Ac&S Design Limited | Thames Ditton | 2013 |
| Ac's Landscaping and Maintenance Services Ltd. | Worthing | 2017 |
| Ac-Uk Holding Ltd | Woodbridge | 2024 |
| AC247 Facilities Management Ltd | Rochester | 2022 |
| AC247 Ltd | London | 2021 |
| ACA Accountancy Services Limited | Derby | 2023 |
| ACA Advisory Ltd | Banbury | 2016 |
| ACA Airport Services Ltd | London | 2024 |
| ACA Civil Engineering Ltd | Manchester | 2015 |
| ACA Cleaning Services Ltd | Birmingham | 2021 |
| ACA Construction Services (NI) Limited | Omagh | 2017 |
| ACA Live Limited | London | 2020 |
| ACA Recruitment Services Limited | Derby | 2022 |
| ACA Support Services Limited | Watford | 2019 |
| Acab Consultancy Services Ltd | Wrexham | 2025 |
| Acab Transport Ltd | Peterborough | 2015 |
| Acacia ARB Ltd | Barnstaple | 2024 |
| Acacia Care (Rickmansworth) Ltd | Northwood | 2017 |
| Acacia Coaching and Development Limited | Palmers Green | 2016 |
| Acacia Creatives Ltd | Derby | 2019 |
| Acacia Eco Trading Limited | Pontypridd | 2017 |
| Acacia Elique Ltd | Stoke On Trent | 2016 |
| Acacia Energy Limited | London | 2010 |
| Acacia Enterprises UK Ltd | Swindon | 2011 |
| Acacia Gardens Ltd | London | 2010 |
| Acacia Groundcare Equipment Rental Limited | Henfield | 2006 |
| Acacia Maintenance Limited | Westerham | 2022 |
| Acacia Management Facilities Limited | London | 2012 |
| Acacia Management Services Limited | Manchester | 2022 |
| Acacia Resourcing Services Limited | Manchester | 2019 |
| Acacia TOK Ltd | Manchester | 2021 |
| Acacia Tours & Tutors Limited | London | 2018 |
| Acacia Workplace Solutions Ltd | London | 2025 |
| Acaciar Limited | Worcester | 2026 |
| Acacias Holdings UK Ltd | Cambridge | 2025 |